Study of the Local Water Absorption Property of Three Dimensional Pulp Mold

Chae Rin Song; Yoon-No Lee; Yong Joo Sung

doi:10.7584/JKTAPPI.2024.8.56.4.84

All Issue

2024 Vol.56, Issue 4 Preview Page

Research Article

Study of the Local Water Absorption Property of Three Dimensional Pulp Mold 3차원 구조 펄프몰드의 국부적 흡수특성평가 연구

30 August 2024. pp. 84-92

PDF XML

Abstract

This study investigated the structural variations in pulp mold, a promising alternative to non-degradable single-use products, and their impact on absorption properties. Pulp mold, made from natural fibers, are increasingly used as eco-friendly packaging solutions due to their recyclability and biodegradability. This research focused on the differences between the bottom and side structures of three dimensional pulp mold, examining how these differences affect their absorption characteristics. It was found that the bottom of the pulp mold samples, with a higher basis weight and lower bulk compared to the side, exhibited greater absorption capacity. Additionally the study developed a localized absorption test method to evaluate these structural variations more accurately. Experimental results showed that coating layers significantly improved the water resistance of pulp molds; however, non-uniform coating application due to structural differences led to variable resistance across the mold. The proposed localized absorption testing method effectively assessed the regional differences in absorption properties, offering a more precise evaluation compared to traditional methods. This research could contribute valuable insights into optimizing pulp mold production processes and enhancing the quality of eco-friendly packaging materials.

Keywords

Pulp mold

bulk

water absorption

local water absorption measurement

References

Han, J., Decomposition analysis on non-recycled plastics in domestic residential wastes, Journal of Environmental Policy and Administration 28(2):70-100 (2020).

10.15301/jepa.2020.28.2.79

You, Y. S., Oh, Y. S., Hong, S. H., and Choi, S. W., International trends in development, commercialization and market of bio-plastics, Clean Technology 21(3):141-152 (2015).

10.7464/ksct.2015.21.3.141

Ko, E., S, W., Lee, H., Kang, W., Shin, J., Kwon, O., and Kim, J., The current status of recycling process and problems of recycling according to the packaging waste of korea., Korean Journal of Packaging Science & Technology 24(2):65-71 (2018).

10.20909/kopast.2018.24.2.65

Kim, H. W., Um, N. I., Kim, W. I., Lee, Y. K., and Kim, K. H., Causes and countermeasures on the rejection of household plastic wastes collection, Journal of Korea Society of Waste Management 36(4):346-353 (2019).

10.9786/kswm.2019.36.4.346

Kim, D. S., Sung. Y. J., Kim, C. H., and Kim, S. B., Changes in the process efficiency and product properties of pulp mold by the application of oil palm EFB, Journal of Korea TAPPI, 48(1):67-74 (2016).

10.7584/ktappi.2016.48.1.067

Liu, Y., Ma, S., Wang, F., and Wang, L., Advances in research of molded pulp for food packaging, Journal of Renewable Materials 11(11):3831-3846 (2023).

10.32604/jrm.2023.028251

Dey, A., Sengupta, P., Pramanik, N. K., and Alam, T., Paper and other pulp based eco-friendly moulded materials for food packaging applications: a review, Journal of Postharvest Technology 8(3):1-21 (2020).

Kim, D. S., Yoon, S. A., Song, C. R., and Sung, Y. J., Changes in the properties of hot pressing pulp molded products depending on the pulp types and manufacturing conditions, Journal of Korea TAPPI 54(5):39-48 (2022).

10.7584/JKTAPPI.2022.10.54.5.39

Sung, Y. J., Kim, D. S., Lee, J. Y., Baek, M. S., and Lee, J. Y., Study of the changes in the structure and the water absorption properties by the pulp mixing ratio, Journal of Korea TAPPI 50(5):141-151 (2018).

10.7584/JKTAPPI.2018.10.50.5.141

Sung, Y. J., Kim, D. S., Choi, G. S., Go, S. M., Lee, Y. J., Kim, S. H., and Lee, J. Y., Evaluation of drying efficiency depending on the conditions of wet pulp mold manufacturing process, Journal of Korea TAPPI 51(6):84-90 (2019).

10.7584/JKTAPPI.2019.12.51.6.84

Dislaire, C., Seantier, B., Muzy, M., and Grohens, Y., Mechanical and hygroscopic properties of molded pulp products using different wood-based cellulose fibers, Polymers 13(19):3225 (2021).

10.3390/polym1319322534641043PMC8512325

Qin, C., Li, J., Wang, W., and Li, W, Improving mechanical strength and water barrier properties of pulp molded product by wet-end added polyamide epichlorohydrin/cationic starch, ACS Omega 7(26):22173-22180 (2022).

10.1021/acsomega.1c0736935811868PMC9260889

LI, Mengyao, Study on Waterproof Pulp Molding Products Manufactured by Wet-Parison Spraying Process, Journal of Physics: Conference Series, IOP Publishing 012077 (2023).

10.1088/1742-6596/2539/1/012077

Kim, D. S., Sung. Y. J., Kim, C. H., and Kim, S. B., Changes in the water absortion properties of pulp mold manufactured with oil palm EFB by surface treatments, Journal of Korea TAPPI 47(1):75-83 (2015).

10.7584/ktappi.2015.47.1.075

Kim, D. S., Choi, G. S., Noh, J. H., and Sung, Y. J., Study of Water Absorption Properties of Water Absorption Core Made of Pulp Mold, Journal of Korea TAPPI 52(3):67-76 (2020).

10.7584/JKTAPPI.2020.06.52.3.67

Information

Publisher :Korea Technical Association of The Pulp and Paper Industry
Publisher(Ko) :한국펄프종이공학회
Journal Title :Journal of Korea TAPPI
Journal Title(Ko) :펄프종이기술
Volume : 56
No :4
Pages :84-92
Received Date : 2024-08-09
Revised Date : 2024-08-18
Accepted Date : 2024-08-19
DOI :https://doi.org/10.7584/JKTAPPI.2024.8.56.4.84

Journal of Korea TAPPI ISSN:0253-3200(Print) 펄프종이기술

All Issue